CN1394662A - Reduced pressure evaporation falling-film heat exchanging equipment - Google Patents
Reduced pressure evaporation falling-film heat exchanging equipment Download PDFInfo
- Publication number
- CN1394662A CN1394662A CN02114331A CN02114331A CN1394662A CN 1394662 A CN1394662 A CN 1394662A CN 02114331 A CN02114331 A CN 02114331A CN 02114331 A CN02114331 A CN 02114331A CN 1394662 A CN1394662 A CN 1394662A
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- Prior art keywords
- falling
- heat exchanger
- film
- cooling water
- heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The present invention relates to a heat exchange equiopment, in particular, it is a vertically-mounted reduced pressure evaporation falling-film heat exchange equipment, its falling-film heat exchange tube is downward connected with falling-film liquor circulating container, and its upper portion is equipped with reduced pressure evaporating and temp.-reducing flow-guide system which is communicated with atmosphere and can be used for making negative pressure countercurrent evaporation, temp.-reducing and heat exchange, and its periphery is equipped with closed circulating cooling system to supply heat.
Description
Heat-exchange apparatus is specifically related to a kind of heat-exchange device of vertical tube falling liquid film reduction vaporization.
Vertical tube falling film type heat-exchange device, straight formula falling-film heat exchanging equipment as " idle call lithium-bromide absorption-type refrigerating machine " (the 4th edition P219-222 in 1998 of China Construction Industry Press) introduction, heat exchange coefficient is higher, but more complicated is set, the cost height, troublesome maintenance, its heat energy is still underused.
It is relatively simple to the objective of the invention is to propose a kind of structure, and integrated heat exchange efficient is higher, the heat-exchange device that floor space is little.
The heat-exchange device that the present invention proposes is the vertical tube falling-film heat exchanging equipment, the heat-exchange device that it is characterized in that the reduced pressure evaporation falling-film circulation is the falling liquid film heat exchanger tube of vertically installing, the mutual UNICOM of falling film evaporation liquid container is arranged at the bottom, it is more smaller than falling liquid film bore that top is inserted with outer tube diameter, form apertured mozzle, there is the aspirating hole that leads to atmosphere the mozzle upper end, mozzle is fixed on the heat exchanger top board, heat exchanger top is provided with falling film evaporation liquid inlet, the outlet of falling film evaporation liquid is positioned at the bottom of falling film evaporation liquid container, and the falling film evaporation liquid container also is connected with filling pipe.Be the cooling water heat exchanger that has cooling water inlet and coolant outlet to be communicated with on the falling liquid film heat exchanger tube, also be provided with deflection plate in the cooling water heat exchanger.
The heat transfer process of the reduction vaporization heat-exchange device that the present invention proposes is achieved in that water to be cooled enters in the heat exchanger, heat is passed to the falling liquid film heat exchanger tube of vertical installation, enter the falling film evaporation liquid of falling film evaporation system from top to bottom, because the aspirating hole on mozzle top is bled, the heat absorption of falling film evaporation liquid reduction vaporization, the water temperature that flows out from the cooling water pipe outlet is reduced, reach the heat exchange purpose.The falling liquid film heat exchange adds the reduction vaporization heat absorption, and freezing capacity is higher, and cooling water system adopts closed circulation, and cost is lower, and whole equipment takes up an area of little, comprehensive heat exchange efficiency height.
Further specify below in conjunction with drawings and Examples:
Accompanying drawing 1: reduced pressure evaporation falling-film heat exchanging equipment sectional schematic diagram.
Accompanying drawing 2: the application of reduced pressure evaporation reduces the heat-exchange device schematic flow sheet.
Among Fig. 1, heat exchanger top board [1], aspirating hole [2], mozzle [3], falling film evaporation liquid inlet [4], falling liquid film heat exchanger tube [5], heat exchanger housing [6], deflection plate [7], falling film evaporation liquid container [8], filling pipe [9], falling film evaporation liquid outlet [10], cooling water heat exchanger [11], pre-hydrothermal solution outlet [12], cooling water inlet [13], coolant outlet [14], lower perforated plate [15], upper perforated plate [16].
Among Fig. 2, circulating pump [17], control valve [18], water storage box [19], waste heat small pump [20], expansion gear [21], cooling water circulating pump [22], domestic hot-water's case [23], hot-water valve [24], hot water circulating pump [25], air-conditioning terminal [26], condenser [27], refrigeration unit [28], evaporimeter [29], chilled water circulating pump [30], temperature compensator [31], reduced pressure evaporation falling-film heat exchanger [32], ball-cock assembly [33], blower fan [34].
As shown in Figure 1, the reduced pressure evaporation falling-film heat exchanging equipment that the present invention proposes, falling film evaporation liquid enters the slit of system through between mozzle [3] and falling liquid film heat exchanger tube [5] by inlet [4], the aspirating hole [2] that is used for mozzle [3] decompression of bleeding.The heat that is provided by the cooling water circulating system forms negative pressure falling liquid film evaporative cooling, pass to its cooling water on every side by falling liquid film heat exchanger tube [5], the cooling water of high temperature enters cooling water heat exchanger [11] by import [13], increase tube side by deflection plate [7], heat exchange cooling in cooling water heat exchanger [11] is by the water of cooling water pipe outlet [14] outflow low temperature.And falling film evaporation heat exchange liquid falls into the falling film evaporation heat exchange container [8] of bottom, flows out from the outlet [10] of its bottom, can recycle use, in the running, can replenish the water of a small amount of evaporation from filling pipe [9].
The reduced pressure evaporation falling-film heat exchanging equipment of the present invention's proposition is applied to the cooling of air-conditioning system air-conditioning equipment as shown in Figure 2, make full use of waste heat simultaneously, and offer live schematic flow sheet with hot water of user: when domestic hot-water's case [23] lack of water, when promptly needing the domestic hot-water is provided, blower fan [34] for reduction vaporization quits work, control valve [18] is opened, waste heat small pump [20] starts, the heat that falling film evaporation liquid obtains from cooling water flows into pre-hydrothermal solution storage tank [19], send into temperature compensator [31] by small pump [20], enter domestic hot-water's case [23] again, ball-cock assembly [33] on filling pipe this moment [9] is opened, make falling film evaporation liquid flow into reduced pressure evaporation falling-film heat exchanging equipment is sent in falling liquid film liquid exit by circulating pump [17] falling film evaporation liquid inlet [4], carry out heat exchange by its mozzle [3] and falling liquid film heat exchanger tube again, from cooling water, obtain the part heat, enter falling film evaporation liquid container [8], flow out by pre-hydrothermal solution pipe [12].After hot water is full of in domestic hot-water's case [23], control valve [18] is closed, small pump quits work, and blower fan [34] starts, and the reduction vaporization cooling process starts, and makes [5] formation negative pressure in the falling liquid film heat exchanger tube, makes the cooling system running of air-conditioning unit.And unevaporated falling film evaporation liquid is got back in its container [8] again, assembles liquid level above behind the overflow plate [13] when falling film evaporation liquid, and floating ball valve of rehydration [33] is closed automatically, controls the speed of its falling liquid film heat exchange.
Reduced pressure evaporation falling-film heat exchanging equipment provided by the invention cools off the operation of air-conditioning effectively.Providing life use hot water simultaneously, the heat exchanger effectiveness height, the operating cost of reduction air-conditioning unit fully utilizes effectively, and the anxiety that can exempt cooling water heat-exchange system incrustation scale remains good heat exchange efficiency.The cost of device own is low, takes up an area of for a short time, and applicability is strong.
Claims (1)
1, reduced pressure evaporation falling-film heat exchanging equipment, it is the vertical tube falling-film heat exchanging equipment, it is characterized in that heat-exchange device is the heat-exchange device of vertical tube falling liquid film reduction vaporization circulation, be provided with the many falling liquid film heat exchanger tubes of vertically installing [5] in the heat exchanger housing [6], falling film evaporation circulation fluid container [8] UNICOM is arranged at its bottom, it is more smaller than falling liquid film heat exchanger tube [5] internal diameter that falling liquid film heat exchanger tube top all is inserted with outer tube diameter, form apertured mozzle [3], there is the aspirating hole [2] that leads to atmosphere on the mozzle top, mozzle [3] is fixed on the heat exchanger top board [1], falling liquid film heat exchanger tube [5] is by upper perforated plate [16], lower perforated plate [15] is positioned in the heat exchanger, heat exchanger top is provided with falling film evaporation liquid inlet [4], falling film evaporation liquid outlet [10] is positioned at the bottom of falling liquid film circulation fluid container [8], falling film evaporation liquid outlet [10] side is provided with overflow plate [13], there is filling pipe [9] falling film evaporation circulation fluid container [8] side, container bottom also has the outlet [12] of pre-hydrothermal solution, falling liquid film heat exchanger tube [5] is outer to be cooling water heat exchanger [11], be provided with deflection plate [7] in the cooling water heat exchanger [11], cooling water heat exchanger [11] upper side has coolant outlet [14], lower side has cooling water inlet [13], is communicated with to constitute cooling water recirculation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02114331A CN1394662A (en) | 2002-08-08 | 2002-08-08 | Reduced pressure evaporation falling-film heat exchanging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02114331A CN1394662A (en) | 2002-08-08 | 2002-08-08 | Reduced pressure evaporation falling-film heat exchanging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1394662A true CN1394662A (en) | 2003-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02114331A Pending CN1394662A (en) | 2002-08-08 | 2002-08-08 | Reduced pressure evaporation falling-film heat exchanging equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN1394662A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101785930A (en) * | 2010-03-18 | 2010-07-28 | 严旭明 | Tubular film evaporator |
| CN101806549B (en) * | 2009-02-13 | 2013-06-12 | 本田技研工业株式会社 | Heat exchanger for vehicle air conditioning system |
| CN106225334A (en) * | 2016-08-31 | 2016-12-14 | 华南理工大学 | A kind of vertically coiled pipe falling film evaporation condenser and method |
| CN106442218A (en) * | 2016-09-09 | 2017-02-22 | 大连工业大学 | Analysis simulation experiment device for adhesiveness in liquid-food film falling process |
-
2002
- 2002-08-08 CN CN02114331A patent/CN1394662A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806549B (en) * | 2009-02-13 | 2013-06-12 | 本田技研工业株式会社 | Heat exchanger for vehicle air conditioning system |
| CN101785930A (en) * | 2010-03-18 | 2010-07-28 | 严旭明 | Tubular film evaporator |
| CN101785930B (en) * | 2010-03-18 | 2012-04-25 | 严旭明 | Tubular film evaporator |
| CN106225334A (en) * | 2016-08-31 | 2016-12-14 | 华南理工大学 | A kind of vertically coiled pipe falling film evaporation condenser and method |
| CN106442218A (en) * | 2016-09-09 | 2017-02-22 | 大连工业大学 | Analysis simulation experiment device for adhesiveness in liquid-food film falling process |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |